Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS guide

Commercial Pool Heaters

INSTALLATION Continued

Figure 36 - Heaters are within 15 feet Perpendicular of Pool Piping

Figure 37 - Heaters are Beyond 15 feet of Pool Piping

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Image 34

Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS Heaters are within 15 feet Perpendicular of Pool Piping

Contents

GAS Heaters for Commercial Pool Applications Commercial Pool Heaters General Product Information Unpacking Commercial Pool Heaters Product Identification Clearances from Combustible Construction Base for Combustible Floors Freeze Protection Combustion Air Filter Installation Combustion Air Options Exhaust Fans Combustion Air from Interior Space Venting Support General InformationVertical Vent Termination Clearances and Location Sidewall Vent Termination Clearances and Location Table B Length of Air Inlet Pipe Combustion Air Inlet PipingSidewall Air Inlet Vertical Rooftop Air Inlet Combined Air Inlet Points Conventional Negative Draft Venting Vent System OptionsNegative Draft Flue Outlet Piping Masonry Chimney InstallationsCommon Venting Systems Vertical DirectAire Venting Inspection of a Masonry Chimney Sidewall Venting Vent KitsVenting of Flue Products Sidewall Venting Termination Sidewall FanSidewall Venting Without Fan Masonry Chimney Installation Horizontal DirectAire Venting TABLE-E Direct Venting Flue Pipe Materials Horizontal DV Venting TerminationCombustion Air Inlet Piping Air Inlet Piping Materials Length of Air Inlet PipeSealing Type-B Doublewall Vent Pipe or Galvanized Vent Pipe Combined Combustion Air Inlet Points Vertical Rooftop Air Inlet Outdoor Installation Venting Outdoor Vent/Air Inlet Location Gas Pressure Test Combustion Air Fan Adjustment for startup3-Way Valve Cover Installation Outdoor Vent Cap Kit Gas Piping Connecting Gas Piping to the Pool HeaterGas Train and Controls Checking Gas Supply Pressure Combination Gas ValvesVenting of Combination Gas Valves TABLE-J Multiple Unit Installations Gas Supply Pipe Sizing Table K Gas Manifold Pressure Adjustment Measuring Net Manifold Gas Pressure Auxiliary Mixed Water Limit Control Pumped Automatic Bypass Way Valve Cover Heater is Within 15 Feet of Pool Piping Heaters are within 15 feet Perpendicular of Pool Piping Relief Valve Water Flow SwitchAutomatic Chlorinator and Chemical Feeders Service Indicator Option Pump Purge Delay OptionWay Automatic Bypass Valve Wiring Terminal Strip Connection Options TABLE-M Operation Lighting Instructions To Turn Off Gas To Pool Heater Pre-Start ChecklistStarting the Filter System Operation Programming Mode Error Messages Displayed by the Temperature Controller Hot Surface Ignition Control Module Diagnostic Status IndicationHot Surface Igniter and Ignition Control Module Ignition Module Lockout Functions TABLE-N Access to Internal Control PanelIgnition and Control Timings Water Chemistry TABLE-O TABLE-P Test Recommended Level Minimum Pump Performance Pipe Size RequirementsCirculating Pump Heat Exchanger Appliance Area High Water Temperature Limit ControlFlue Gas Passageways Cleaning Procedures Water Circulating Pump Electrical Burner Removal and CleaningHeat Exchanger Cleaning Combustion and Ventilation Air Combustion Air Fan Adjustment Adjusting Differential Air PressureFan Cleaning Set-Up Procedure Servicing Hot Surface Igniter and Ignition Module Adjustment ProcedureIgnition System Checkout Sequence of Operation Glossary Prepurge Wiring BOX Connections Wiring BOX Connections Ladder Diagram Control BOX Connections Commercial Pool Heaters Appendix a Appendix B View Menu Item Menu Description